Github user andrewor14 commented on a diff in the pull request:
https://github.com/apache/spark/pull/8639#discussion_r42300506
--- Diff:
core/src/main/scala/org/apache/spark/scheduler/cluster/mesos/MesosSchedulerBackend.scala
---
@@ -207,23 +211,44 @@ private[spark] class MesosSchedulerBackend(
*/
override def resourceOffers(d: SchedulerDriver, offers: JList[Offer]) {
inClassLoader() {
+ // Fail first on offers with unmet constraints
+ val (offersMatchingConstraints, offersNotMatchingConstraints) =
+ offers.asScala.partition { o =>
+ val offerAttributes = toAttributeMap(o.getAttributesList)
+ val meetsConstraints =
+ matchesAttributeRequirements(slaveOfferConstraints,
offerAttributes)
+
+ // add some debug messaging
--- End diff --
remove (doesn't add any value)
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